Fix create-block-db-symlink to use activate-osd volume

Use the OSD-specific activate-osd volume mount instead of rook-data
parent directory. Multiple old OSD dirs exist on each node and the
script was creating the symlink in the wrong (stale LVM) directory.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

infrastructure/kyverno/policies/fix-rook-osd-metadata-device.yaml

@@ -61,19 +61,18 @@ spec:
                     exit 0
                   fi
                   echo "BlueStore label found on /dev/sdb"
-                  # Find OSD data directory under rook data path
-                  for d in /var/lib/rook/rook-ceph/*/; do
-                    if [ -L "$d/block" ]; then
-                      ln -sf /dev/sdb "$d/block.db"
-                      echo "Created block.db -> /dev/sdb in $d"
-                      break
-                    fi
-                  done
+                  # Use activate-osd mount (OSD-specific data directory)
+                  if [ -e "/osd-data/block" ]; then
+                    ln -sf /dev/sdb /osd-data/block.db
+                    echo "Created block.db -> /dev/sdb in /osd-data/"
+                  else
+                    echo "No block device found in /osd-data/, skipping"
+                  fi
               securityContext:
                 privileged: true
                 runAsUser: 0
               volumeMounts:
-                - name: rook-data
-                  mountPath: /var/lib/rook
+                - name: activate-osd
+                  mountPath: /osd-data
                 - name: devices
                   mountPath: /dev